docs: fix links & other imrpvoements

docs/spec/p2p/connection.md

@@ -38,7 +38,7 @@ type msgPacket struct {
 }
 ```
 
-The `msgPacket` is serialized using [go-wire](https://github.com/tendermint/go-wire) and prefixed with 0x3.
+The `msgPacket` is serialized using [go-amino](https://github.com/tendermint/go-amino) and prefixed with 0x3.
 The received `Bytes` of a sequential set of packets are appended together
 until a packet with `EOF=1` is received, then the complete serialized message
 is returned for processing by the `onReceive` function of the corresponding channel.

docs/spec/reactors/mempool/reactor.md

@@ -2,12 +2,12 @@
 
 ## Channels
 
-[#1503](https://github.com/tendermint/tendermint/issues/1503)
+See [this issue](https://github.com/tendermint/tendermint/issues/1503)
 
 Mempool maintains a cache of the last 10000 transactions to prevent
 replaying old transactions (plus transactions coming from other
 validators, who are continually exchanging transactions). Read [Replay
-Protection](https://tendermint.readthedocs.io/projects/tools/en/master/app-development.html?#replay-protection)
+Protection](../../../../app-development.md#replay-protection)
 for details.
 
 Sending incorrectly encoded data or data exceeding `maxMsgSize` will result

docs/spec/software/abci.md

@@ -7,7 +7,7 @@ The ABCI message types are defined in a [protobuf
 file](https://github.com/tendermint/tendermint/blob/develop/abci/types/types.proto).
 
 For full details on the ABCI message types and protocol, see the [ABCI
-specification](https://github.com/tendermint/tendermint/blob/develop/docs/abci-spec.md).
+specification](https://github.com/tendermint/tendermint/blob/develop/docs/app-dev/abci-spec.md).
 Be sure to read the specification if you're trying to build an ABCI app!
 
 For additional details on server implementation, see the [ABCI

docs/spec/software/wal.md

@@ -28,6 +28,5 @@ WAL. Then it will go to precommit, and that time it will work because the
 private validator contains the `LastSignBytes` and then we’ll replay the
 precommit from the WAL.
 
-Make sure to read about [WAL
-corruption](https://tendermint.readthedocs.io/projects/tools/en/master/specification/corruption.html#wal-corruption)
+Make sure to read about [WAL corruption](../../../tendermint-core/running-in-production.md#wal-corruption)
 and recovery strategies.